| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 31.0 | 34.1 | 38.0 | 45.3 | 53.0 | 59.3 | 62.2 | 60.7 | 54.3 | 46.0 | 37.0 | 33.1 | 46.2 |
| Highest Mean Max. Temperature (F) | 40.4 | 43.3 | 43.8 | 51.0 | 58.0 | 62.9 | 67.2 | 65.8 | 57.4 | 49.7 | 42.2 | 39.1 | 48.9 |
| Year Highest Occurred | 1981 | 1977 | 1981 | 1989 | 1981 | 1983 | 1989 | 1987 | 1989 | 1979 | 1976 | 1969 | 1981 |
| Lowest Mean Max. Temperature (F) | 20.5 | 23.3 | 31.6 | 38.3 | 46.0 | 55.3 | 58.4 | 57.1 | 50.9 | 42.5 | 28.4 | 24.3 | 43.0 |
| Year Lowest Occurred | 1969 | 1979 | 1972 | 1972 | 1971 | 1975 | 1970 | 1969 | 1970 | 1966 | 1985 | 1964 | 1971 |
| Mean Temperature (F) | 27.0 | 30.0 | 33.2 | 38.9 | 45.7 | 51.6 | 54.7 | 53.7 | 48.6 | 41.7 | 33.2 | 29.3 | 40.6 |
| Highest Mean Temperature (F) | 36.9 | 39.5 | 38.3 | 42.5 | 49.9 | 54.1 | 57.2 | 56.1 | 50.7 | 45.6 | 39.5 | 35.9 | 43.2 |
| Year Highest Occurred | 1981 | 1977 | 1981 | 1984 | 1981 | 1983 | 1987 | 1987 | 1977 | 1979 | 1976 | 1969 | 1981 |
| Lowest Mean Temperature (F) | 15.3 | 18.1 | 27.9 | 34.0 | 40.3 | 48.5 | 52.4 | 50.8 | 46.7 | 38.7 | 22.8 | 19.4 | 38.0 |
| Year Lowest Occurred | 1969 | 1979 | 1972 | 1972 | 1971 | 1985 | 1970 | 1969 | 1970 | 1990 | 1985 | 1964 | 1972 |
| Mean Min. Temperature (F) | 23.0 | 25.8 | 28.4 | 32.5 | 38.3 | 43.8 | 47.0 | 46.7 | 43.0 | 37.3 | 29.3 | 25.5 | 35.1 |
| Highest Mean Min. Temperature (F) | 33.3 | 35.7 | 33.8 | 35.6 | 41.8 | 45.9 | 48.6 | 48.5 | 46.5 | 41.4 | 36.8 | 32.7 | 37.4 |
| Year Highest Occurred | 1981 | 1977 | 1984 | 1977 | 1981 | 1977 | 1977 | 1966 | 1963 | 1979 | 1976 | 1969 | 1981 |
| Lowest Mean Min. Temperature (F) | 10.1 | 12.8 | 23.3 | 29.6 | 34.6 | 41.0 | 45.7 | 44.5 | 40.5 | 32.9 | 17.1 | 14.5 | 32.6 |
| Year Lowest Occurred | 1969 | 1979 | 1967 | 1972 | 1971 | 1985 | 1964 | 1969 | 1983 | 1990 | 1985 | 1964 | 1972 |
| Mean Precipitation (in.) | 6.30 | 5.09 | 3.68 | 2.98 | 3.76 | 3.16 | 3.99 | 5.82 | 9.05 | 11.14 | 7.07 | 6.60 | 68.64 |
| Highest Precipitation (in.) | 11.29 | 10.73 | 7.55 | 7.26 | 6.64 | 8.40 | 7.98 | 10.81 | 15.04 | 24.61 | 15.14 | 12.59 | 86.69 |
| Year Highest Occurred | 1985 | 1988 | 1969 | 1986 | 1972 | 1975 | 1969 | 1961 | 1990 | 1978 | 1969 | 1989 | 1988 |
| Lowest Precipitation (in.) | 2.29 | 0.19 | 0.70 | 0.31 | 1.18 | 0.91 | 1.34 | 0.91 | 3.12 | 6.34 | 1.59 | 0.76 | 49.56 |
| Year Lowest Occurred | 1969 | 1989 | 1989 | 1976 | 1977 | 1982 | 1987 | 1963 | 1965 | 1975 | 1965 | 1983 | 1965 |
| Heating Degree Days (F) | 1178. | 980. | 986. | 783. | 598. | 402. | 319. | 350. | 492. | 722. | 954. | 1107. | 8871. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |